Which statements about West African kingdoms of the 1300s and 1400s are correct? Choose all answers that are correct. A. Songhai reached its greatest size under Askia Muhammad. B. The kingdom of Benin consists mostly of savanna, an arid, treeless flat land. C. Benin's brass makers brought fame and wealth to its well-organized capital. D. Songhai's greatest city and capital, built from massive stones, was Timbuktu.